chore(deps): update actions/checkout action to v3 (major)

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
actions/checkout	action	major	v2 -> v3

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Release Notes

actions/checkout

v3

Compare Source

• Update to node 16

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Configuration

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[codecov]

Codecov Report

Merging #76 (c72636c) into master (b61355d) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master      #76   +/-   ##
=======================================
  Coverage   88.97%   88.97%           
=======================================
  Files           8        8           
  Lines         127      127           
  Branches       57       57           
=======================================
  Hits          113      113           
  Misses         14       14           

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